CA3144206C - Codage d'informations concernant un ensemble de noyaux de transformation - Google Patents

Codage d'informations concernant un ensemble de noyaux de transformation

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Publication number
CA3144206C
CA3144206C CA3144206A CA3144206A CA3144206C CA 3144206 C CA3144206 C CA 3144206C CA 3144206 A CA3144206 A CA 3144206A CA 3144206 A CA3144206 A CA 3144206A CA 3144206 C CA3144206 C CA 3144206C
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CA
Canada
Prior art keywords
transform
bin
index
context
mts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA3144206A
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English (en)
Other versions
CA3144206A1 (fr
Inventor
Junghak NAM
Moonmo KOO
Jaehyun Lim
Seunghwan Kim
Original Assignee
LG Electronics Inc
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Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to CA3240498A priority Critical patent/CA3240498A1/fr
Publication of CA3144206A1 publication Critical patent/CA3144206A1/fr
Application granted granted Critical
Publication of CA3144206C publication Critical patent/CA3144206C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/40—Transformation of program code
    • G06F8/41—Compilation
    • G06F8/42—Syntactic analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La présente invention concerne un procédé de décodage d'image qui est caractérisé en ce qu'il comprend : une étape consistant à acquérir un indice de sélection de transformée multiple (MTS) et d'informations résiduelles à partir d'un train de bits; une étape consistant à dériver des coefficients de transformée pour le bloc actuel sur la base des informations résiduelles; et une étape consistant à générer des échantillons résiduels du bloc actuel sur la base de l'indice de sélection MTS et des coefficients de transformée, l'indice de sélection MTS indiquant un ensemble de noyaux de transformation à appliquer au bloc actuel parmi des candidats d'ensemble de noyaux de transformation, au moins un segment parmi des segments d'une chaîne de segments de l'indice de sélection MTS étant dérivé sur la base d'un codage de contexte, le codage de contexte étant réalisé sur la base de valeurs d'augmentation et de diminution dans un Indice de contexte se rapportant à l'indice de sélection MTS, et une valeur unique d'augmentation et de diminution de l'indice de contexte pouvant être utilisée pour le codage de contexte du premier segment parmi les segments de la chaîne de segments.
CA3144206A 2019-06-19 2020-06-11 Codage d'informations concernant un ensemble de noyaux de transformation Active CA3144206C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3240498A CA3240498A1 (fr) 2019-06-19 2020-06-11 Codage d'informations concernant un ensemble de noyaux de transformation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962863812P 2019-06-19 2019-06-19
US62/863,812 2019-06-19
PCT/KR2020/007599 WO2020256346A1 (fr) 2019-06-19 2020-06-11 Codage d'informations concernant un ensemble de noyaux de transformation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA3240498A Division CA3240498A1 (fr) 2019-06-19 2020-06-11 Codage d'informations concernant un ensemble de noyaux de transformation

Publications (2)

Publication Number Publication Date
CA3144206A1 CA3144206A1 (fr) 2020-12-24
CA3144206C true CA3144206C (fr) 2024-10-15

Family

ID=74037350

Family Applications (2)

Application Number Title Priority Date Filing Date
CA3144206A Active CA3144206C (fr) 2019-06-19 2020-06-11 Codage d'informations concernant un ensemble de noyaux de transformation
CA3240498A Pending CA3240498A1 (fr) 2019-06-19 2020-06-11 Codage d'informations concernant un ensemble de noyaux de transformation

Family Applications After (1)

Application Number Title Priority Date Filing Date
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Country Status (16)

Country Link
US (4) US11570438B2 (fr)
EP (3) EP3989562B1 (fr)
JP (4) JP7303335B2 (fr)
KR (2) KR102813325B1 (fr)
CN (1) CN114127789A (fr)
AU (3) AU2020297214B2 (fr)
CA (2) CA3144206C (fr)
ES (2) ES2982809T3 (fr)
FI (1) FI3989562T3 (fr)
HR (2) HRP20251090T1 (fr)
HU (2) HUE073036T2 (fr)
MX (1) MX2021016155A (fr)
PL (2) PL3989562T3 (fr)
RS (1) RS67160B1 (fr)
SI (1) SI3989562T1 (fr)
WO (1) WO2020256346A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113365054B (zh) * 2019-03-09 2022-08-05 杭州海康威视数字技术股份有限公司 进行编码和解码的方法、解码端、编码端和系统
CN119484834A (zh) 2019-06-19 2025-02-18 Lg 电子株式会社 图像编译中指示变换核集的信息的信令
EP3989562B1 (fr) * 2019-06-19 2024-05-22 Lg Electronics Inc. Codage d'informations concernant un ensemble de noyaux de transformation
KR102211000B1 (ko) * 2019-06-21 2021-02-02 삼성전자주식회사 비디오 복호화 방법 및 장치, 비디오 부호화 방법 및 장치
WO2021058593A1 (fr) * 2019-09-24 2021-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept de codage pour une séquence de valeurs d'informations
US12003731B2 (en) * 2021-09-29 2024-06-04 Qualcomm Incorporated Adaptive determination of multiple transform candidates for video coding

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WO2007081116A1 (fr) * 2006-01-07 2007-07-19 Electronics And Telecommunications Research Institute Procédé et appareil de codage et de décodage de données vidéo
US20090067503A1 (en) * 2006-01-07 2009-03-12 Electronics And Telecommunications Research Institute Method and apparatus for video data encoding and decoding
KR20120034044A (ko) * 2010-09-30 2012-04-09 한국전자통신연구원 영상 변환 부호화/복호화 방법 및 장치
US20120189052A1 (en) 2011-01-24 2012-07-26 Qualcomm Incorporated Signaling quantization parameter changes for coded units in high efficiency video coding (hevc)
US9357185B2 (en) * 2011-11-08 2016-05-31 Qualcomm Incorporated Context optimization for last significant coefficient position coding
US9538175B2 (en) * 2012-09-26 2017-01-03 Qualcomm Incorporated Context derivation for context-adaptive, multi-level significance coding
US10708164B2 (en) * 2016-05-03 2020-07-07 Qualcomm Incorporated Binarizing secondary transform index
EP3453181B1 (fr) 2016-05-04 2025-10-29 Sharp Kabushiki Kaisha Procédés et appareils de codage de données de transformées
WO2019009618A1 (fr) * 2017-07-04 2019-01-10 삼성전자 주식회사 Procédé et appareil de codage d'image, et procédé et appareil de décodage d'image
WO2020035829A1 (fr) * 2018-08-16 2020-02-20 Beijing Bytedance Network Technology Co., Ltd. Codage dépendant du coefficient de sélection de matrice de transformation
WO2020003282A1 (fr) * 2018-06-29 2020-01-02 Beijing Bytedance Network Technology Co., Ltd. Gestion de prédicteurs de vecteur de mouvement pour codage vidéo
JP2020053924A (ja) * 2018-09-28 2020-04-02 シャープ株式会社 動画像符号化装置、動画像復号装置
EP3857896A4 (fr) * 2018-11-22 2021-12-01 Beijing Bytedance Network Technology Co. Ltd. Procédé de coordination pour une inter-prédiction basée sur des sous-blocs
BR122021012456B1 (pt) * 2019-01-15 2022-03-22 Lg Electronics Inc Método de decodificação de uma imagem realizado por um aparelho de decodificação, método de codificação de uma imagem realizado por um aparelho de codificação, aparelho de decodificação para decodificação de imagem, aparelho de codificação para codificação de imagem e mídia de armazenamento digital legível por computador não transitória
US10986339B2 (en) * 2019-02-08 2021-04-20 Tencent America LLC Method and apparatus for harmonization between transform skip mode and multiple transform selection
WO2020180102A1 (fr) * 2019-03-04 2020-09-10 엘지전자 주식회사 Procédé de décodage d'image à l'aide de drapeau de signe codé de contexte dans un système de codage d'image et appareil associé
EP4561066A3 (fr) * 2019-03-12 2025-06-04 LG Electronics Inc. Procédé de codage d'image basé sur une transformée et dispositif associé
KR20220006055A (ko) * 2019-05-11 2022-01-14 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 다중 인트라 코딩 방법 사이의 상호 작용
US11290731B2 (en) * 2019-05-22 2022-03-29 Tencent America LLC Method and apparatus for video coding
EP3989562B1 (fr) * 2019-06-19 2024-05-22 Lg Electronics Inc. Codage d'informations concernant un ensemble de noyaux de transformation

Also Published As

Publication number Publication date
US11570438B2 (en) 2023-01-31
US12348716B2 (en) 2025-07-01
EP4376415B1 (fr) 2025-08-13
JP2022538024A (ja) 2022-08-31
CA3144206A1 (fr) 2020-12-24
EP4376415A3 (fr) 2024-07-10
JP2023112077A (ja) 2023-08-10
HUE073036T2 (hu) 2025-12-28
FI3989562T3 (fi) 2024-06-19
CN114127789A (zh) 2022-03-01
US20250233994A1 (en) 2025-07-17
WO2020256346A1 (fr) 2020-12-24
AU2025263867A1 (en) 2025-11-27
EP4604551A3 (fr) 2025-10-29
KR20250079050A (ko) 2025-06-04
EP3989562A4 (fr) 2023-04-19
EP4376415C0 (fr) 2025-08-13
CA3240498A1 (fr) 2020-12-24
US20230134294A1 (en) 2023-05-04
US11909972B2 (en) 2024-02-20
SI3989562T1 (sl) 2024-08-30
AU2024200618B2 (en) 2025-08-21
US20220150497A1 (en) 2022-05-12
HRP20251090T1 (hr) 2025-11-07
EP3989562A1 (fr) 2022-04-27
PL3989562T3 (pl) 2024-08-19
KR20220000403A (ko) 2022-01-03
EP4376415A2 (fr) 2024-05-29
ES2982809T3 (es) 2024-10-17
ES3041151T3 (en) 2025-11-07
EP3989562B1 (fr) 2024-05-22
AU2020297214A1 (en) 2022-02-03
JP7303335B2 (ja) 2023-07-04
JP7663743B2 (ja) 2025-04-16
US20240163434A1 (en) 2024-05-16
HRP20240826T1 (hr) 2024-11-22
EP4604551A2 (fr) 2025-08-20
AU2020297214B2 (en) 2023-11-02
JP2024096399A (ja) 2024-07-12
JP2025100588A (ja) 2025-07-03
MX2021016155A (es) 2022-02-22
HUE067102T2 (hu) 2024-09-28
KR102813325B1 (ko) 2025-05-27
AU2024200618A1 (en) 2024-02-22
RS67160B1 (sr) 2025-09-30
JP7488399B2 (ja) 2024-05-21
BR112021025591A2 (pt) 2022-02-01
PL4376415T3 (pl) 2025-10-13

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